1253040113 has 8 divisors (see below), whose sum is σ = 1385899368. Its totient is φ = 1125391104.

The previous prime is 1253040077. The next prime is 1253040121. The reversal of 1253040113 is 3110403521.

It can be written as a sum of positive squares in 4 ways, for example, as 155575729 + 1097464384 = 12473^2 + 33128^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253040113 - 2⁶ = 1253040049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253040193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302056 + ... + 1303017.

It is an arithmetic number, because the mean of its divisors is an integer number (173237421).

Almost surely, 2^1253040113 is an apocalyptic number.

1253040113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1253040113 is a deficient number, since it is larger than the sum of its proper divisors (132859255).

1253040113 is a wasteful number, since it uses less digits than its factorization.

1253040113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605123.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1253040113 is about 35398.3066402900. The cubic root of 1253040113 is about 1078.0899346467.

Adding to 1253040113 its reverse (3110403521), we get a palindrome (4363443634).

The spelling of 1253040113 in words is "one billion, two hundred fifty-three million, forty thousand, one hundred thirteen".